S
M
T
W
T
F
S
26
30°
20°
27
39°
20°
28
47°
15°
29
58°
23°
30
61°
22°
1
76°
35°
2
68°
39°
3
73°
37°
4
45°
25°
5
48°
23°
6
55°
34°
7
62°
36°
8
68°
38°
9
58°
34°
10
67°
42°
11
67°
43°
12
63°
39°
13
60°
37°
14
71°
41°
15
63°
40°
16
62°
41°
17
76°
51°
18
68°
45°
19
59°
45°
20
59°
43°
21
60°
39°
22
64°
46°
23
68°
47°
24
60°
43°
25
64°
45°
26
66°
46°
27
66°
45°
28
65°
46°
29
62°
42°
30
66°
48°
31
72°
50°
1
74°
50°
2
73°
51°
3
74°
51°
4
74°
50°
5
70°
50°
6
68°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Birsay
Birsay's May 2026 forecast shows daily high temperatures ranging from 45° to 76°, with overnight lows between 23° and 51°. The average high for May is 65° with an average low of 43°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Birsay. See also: June | July | August.
